“The Study of Adult Development is a longitudinal study that has been following two groups of men over the last 75 years to identify the psychosocial predictors of healthy aging. We have two groups of participants: The Grant Study that is composed of 268 Harvard graduates from the classes of  1939-1944 and the Glueck Study group that is made up of 456 men who grew up in the inner-city  neighborhoods of Boston.  We are particularly interested in what psychosocial variables and biological processes from earlier in life predict health and well-being in late life (80’s and 90’s), what aspects of  childhood and adult experience predict the quality of intimate relationships in late life, and how  late life marriage is linked with health and well-being.  We are now beginning to study the children of our original participants in our G2 (Second Generation) study.”